#0B1E4A
Closest named color: Navy Blue (#001146). oklch(25% 0.086 263.7), rgb(11, 30, 74).
Aa
White text reads best on this color (16.16:1).
About this color
#0B1E4A is a dark, moderately saturated blue. In OKLCH its lightness is 25%, its chroma 0.086 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.043 away. White text reads best on it, at 16.16:1.
| Hue family | Blues |
| Lightness | dark (25%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.29:1 |
| White text | 16.16:1 |
Values
| HEX | #0B1E4A |
| RGB | rgb(11, 30, 74) |
| HSL | hsl(222, 74%, 17%) |
| OKLCH | oklch(25% 0.086 263.7) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #0B1E4A | 16.16:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #0B1E4A | 1.29:1 | Fails | Lc 0.0 | Not readable |
| #0B1E4A text on white | 16.16:1 | AAA | Lc 102.9 | Preferred for body text |
| #0B1E4A text on black | 1.29:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#E0EAFE
oklch(93.6% 0.029 264.4)
-
Step 200
200
#C6DAFF
oklch(88.5% 0.056 262.8)
-
Step 300
300
#A1C0FF
oklch(80.8% 0.096 264.1)
-
Step 400
400
#6F9DFF
oklch(70.7% 0.152 263.9)
-
Step 500
500
#4880FF
oklch(63% 0.198 263.8)
-
Step 600
600
#2864F4
oklch(55.6% 0.225 263.6)
-
Step 700
700
#1C51D5
oklch(49.1% 0.21 263.7)
-
Step 800
800
#1944AC
oklch(42.8% 0.173 263.6)
-
Step 900
900
#1A3B88
oklch(37.8% 0.135 263.7)
-
Step 950
950 (this color)
#0B1E4A
oklch(25% 0.086 263.7)
#0B1E4A with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #00244C | 0.019 |
| Deuteranopia (no green cones) | #001E49 | 0.011 |
| Tritanopia (no blue cones) | #002930 | 0.068 |
| Achromatopsia (no color) | #212121 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B1E4A
#0B1E4A
oklch(25% 0.086 263.7)
- #2D1F00
#2D1F00
oklch(25% 0.051 84.2)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #0B1E4A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.043
- Oxford Blue #1B263B ΔE 0.047
- Dark Indigo #1F0954 ΔE 0.055
- Dark #1B2431 ΔE 0.059
- Marine #042E60 ΔE 0.060
- Rich Black #0D1B2A ΔE 0.061
- Darkblue #030764 ΔE 0.066
- Night Blue #040348 ΔE 0.069
Use #0B1E4A in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.